2 * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
4 * Benoit Parrot <bparrot@ti.com>
5 * Lad, Prabhakar <prabhakar.csengg@gmail.com>
7 * This program is free software; you may redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
11 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
12 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
13 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
15 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
16 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
17 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 #ifndef AM437X_VPFE_USER_H
22 #define AM437X_VPFE_USER_H
24 enum vpfe_ccdc_data_size {
25 VPFE_CCDC_DATA_16BITS = 0,
26 VPFE_CCDC_DATA_15BITS,
27 VPFE_CCDC_DATA_14BITS,
28 VPFE_CCDC_DATA_13BITS,
29 VPFE_CCDC_DATA_12BITS,
30 VPFE_CCDC_DATA_11BITS,
31 VPFE_CCDC_DATA_10BITS,
35 /* enum for No of pixel per line to be avg. in Black Clamping*/
36 enum vpfe_ccdc_sample_length {
37 VPFE_CCDC_SAMPLE_1PIXELS = 0,
38 VPFE_CCDC_SAMPLE_2PIXELS,
39 VPFE_CCDC_SAMPLE_4PIXELS,
40 VPFE_CCDC_SAMPLE_8PIXELS,
41 VPFE_CCDC_SAMPLE_16PIXELS,
44 /* enum for No of lines in Black Clamping */
45 enum vpfe_ccdc_sample_line {
46 VPFE_CCDC_SAMPLE_1LINES = 0,
47 VPFE_CCDC_SAMPLE_2LINES,
48 VPFE_CCDC_SAMPLE_4LINES,
49 VPFE_CCDC_SAMPLE_8LINES,
50 VPFE_CCDC_SAMPLE_16LINES,
53 /* enum for Alaw gamma width */
54 enum vpfe_ccdc_gamma_width {
55 VPFE_CCDC_GAMMA_BITS_15_6 = 0, /* use bits 15-6 for gamma */
56 VPFE_CCDC_GAMMA_BITS_14_5,
57 VPFE_CCDC_GAMMA_BITS_13_4,
58 VPFE_CCDC_GAMMA_BITS_12_3,
59 VPFE_CCDC_GAMMA_BITS_11_2,
60 VPFE_CCDC_GAMMA_BITS_10_1,
61 VPFE_CCDC_GAMMA_BITS_09_0, /* use bits 9-0 for gamma */
64 /* structure for ALaw */
65 struct vpfe_ccdc_a_law {
66 /* Enable/disable A-Law */
68 /* Gamma Width Input */
69 enum vpfe_ccdc_gamma_width gamma_wd;
72 /* structure for Black Clamping */
73 struct vpfe_ccdc_black_clamp {
75 /* only if bClampEnable is TRUE */
76 enum vpfe_ccdc_sample_length sample_pixel;
77 /* only if bClampEnable is TRUE */
78 enum vpfe_ccdc_sample_line sample_ln;
79 /* only if bClampEnable is TRUE */
80 unsigned short start_pixel;
81 /* only if bClampEnable is TRUE */
83 /* only if bClampEnable is FALSE */
84 unsigned short dc_sub;
87 /* structure for Black Level Compensation */
88 struct vpfe_ccdc_black_compensation {
89 /* Constant value to subtract from Red component */
91 /* Constant value to subtract from Gr component */
93 /* Constant value to subtract from Blue component */
95 /* Constant value to subtract from Gb component */
99 /* Structure for CCDC configuration parameters for raw capture mode passed
102 struct vpfe_ccdc_config_params_raw {
103 /* data size value from 8 to 16 bits */
104 enum vpfe_ccdc_data_size data_sz;
105 /* Structure for Optional A-Law */
106 struct vpfe_ccdc_a_law alaw;
107 /* Structure for Optical Black Clamp */
108 struct vpfe_ccdc_black_clamp blk_clamp;
109 /* Structure for Black Compensation */
110 struct vpfe_ccdc_black_compensation blk_comp;
115 * VIDIOC_AM437X_CCDC_CFG - Set CCDC configuration for raw capture
116 * This is an experimental ioctl that will change in future kernels. So use
117 * this ioctl with care !
119 #define VIDIOC_AM437X_CCDC_CFG \
120 _IOW('V', BASE_VIDIOC_PRIVATE + 1, void *)
122 #endif /* AM437X_VPFE_USER_H */